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FlexRadio delivers top-tier direct-sampling SDR technology for serious HF/6m operators. FlexRadio’s industry-leading SmartSDR™ software supports the Aurora, 8000 Signature, and legacy 6000 Series. With SmartLink™, operate your radio remotely from anywhere—even on your iPhone.
FlexRadio Aurora Series
Introducing the Aurora™ Series—an all-new family of HF/6m transceivers featuring the world’s first truly integrated 500W SDR transmitter.
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FlexRadio, SDR Transceivers, Transceivers
FlexRadio AU-510 HF/6m 500W SDR Transceiver
The new FlexRadio AU-510 HF/6m transceiver features the world first truly integrated 500W SDR transmitter and up to 2 independent receivers with powerful SDR performance.
The Aurora Series defines a new category in amateur radio, eliminating the traditional boundaries between transceiver, amplifier, tuner, and power supply.
NOTE: Preliminary pricing, subject to change.
- ✔ Pre-order now – 250 EUR reservation fee
- ✔ Enter your order and check out with bank transfer
- ✔ You will receive instructions to transfer the reservation fee
- ✔ After checkout, you’ll receive an order confirmation
- ✔ When the product is available, we’ll contact you for final payment
- ✔ The 250 EUR fee will be deducted from your final payment
- ✔ Cancel your pre-order anytime – full refund of pre-order fee
SKU: FLEX-AU-510 -
FlexRadio, SDR Transceivers, Transceivers
FlexRadio AU-510M HF/6m 500W SDR Transceiver
The new FlexRadio AU-510M HF/6m transceiver features the world first truly integrated 500W SDR transmitter, up to 2 independent receiver slices, combining powerful SDR performance with a built-in display and front panel controls for standalone use.
The Aurora Series defines a new category in amateur radio, eliminating the traditional boundaries between transceiver, amplifier, tuner, and power supply.
NOTE: Preliminary pricing, subject to change.
- ✔ Pre-order now – 250 EUR reservation fee
- ✔ Enter your order and check out with bank transfer
- ✔ You will receive instructions to transfer the reservation fee
- ✔ After checkout, you’ll receive an order confirmation
- ✔ When the product is available, we’ll contact you for final payment
- ✔ The 250 EUR fee will be deducted from your final payment
- ✔ Cancel your pre-order anytime – full refund of pre-order fee
SKU: FLEX-AU-510M -
FlexRadio, SDR Transceivers, Transceivers
FlexRadio AU-520 HF/6m 500W SDR Transceiver
The new FlexRadio AU-520 HF/6m transceiver features the world first truly integrated 500W SDR transmitter, 2 SCUs (Sampling Capture Units), up to 4 independent receivers, and 7th-order contest-grade preselectors for superior dynamic range, providing full SO2R support and diversity reception.
The Aurora Series defines a new category in amateur radio, eliminating the traditional boundaries between transceiver, amplifier, tuner, and power supply.
NOTE: Preliminary pricing, subject to change.
- ✔ Pre-order now – 250 EUR reservation fee
- ✔ Enter your order and check out with bank transfer
- ✔ You will receive instructions to transfer the reservation fee
- ✔ After checkout, you’ll receive an order confirmation
- ✔ When the product is available, we’ll contact you for final payment
- ✔ The 250 EUR fee will be deducted from your final payment
- ✔ Cancel your pre-order anytime – full refund of pre-order fee
SKU: FLEX-AU-520 -
FlexRadio, SDR Transceivers, Transceivers
FlexRadio AU-520M HF/6m 500W SDR Transceiver
The new FlexRadio AU-520M HF/6m transceiver features the world first truly integrated 500W SDR transmitter, 2 SCUs (Sampling Capture Units), up to 4 independent receivers, 7th-order contest-grade preselectors, outstanding dynamic range, providing full SO2R support and diversity reception and diversity reception—combined with a built-in display and controls for both remote and standalone operation.
The Aurora Series defines a new category in amateur radio, eliminating the traditional boundaries between transceiver, amplifier, tuner, and power supply.
NOTE: Preliminary pricing, subject to change.
- ✔ Pre-order now – 250 EUR reservation fee
- ✔ Enter your order and check out with bank transfer
- ✔ You will receive instructions to transfer the reservation fee
- ✔ After checkout, you’ll receive an order confirmation
- ✔ When the product is available, we’ll contact you for final payment
- ✔ The 250 EUR fee will be deducted from your final payment
- ✔ Cancel your pre-order anytime – full refund of pre-order fee
SKU: FLEX-AU-520M
Limited Offer: Pre-order now → receive a free Aurora Jacket and Tumbler!
Compare FlexRadio Aurora Models side-by-side ➜
Learn more about the aurora series here ➜
FLEX-8000 Signature Series
The FLEX-8000 Signature Series delivers top-tier SDR performance with full remote control capability and MultiFLEX™ for serious operators and contesters.
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FlexRadio, SDR Transceivers, Transceivers
FLEX-8600M SDR Transceiver
The FLEX-8600M™ offers the ultimate performance direct sampling SDR technology and the best value for the serious HF/6m operator. The FLEX-8600M is designed with a stunning 8-inch 1920 x 1200 IPS WUXGA touchscreen display and ergonomic controls to deliver a high-performance SDR with a traditional radio interface — no PC required.
SKU: FLEX-8600M
Compare FLEX-8000 Series models side-by-side ➜
FlexRadio Genius Series by 4O3A
The PowerGenius XL is a 100% ICAS duty cycle, legal limit (1500W ICAS) 1.8-54 MHz RF amplifier. Designed with a pair of the latest NXP MRF1K50H LDMOS transistors that are each capable of 1.5 kW and run up to 2000W easily, providing plenty of headroom for lowest IMD and spurious output.
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4O3A, Power Amplifiers
Power Genius XL 2kW HF/6m LDMOS Amplifier
PowerGenius XL is a solid-state amplifier delivering up to 2000 W SSB or up to 1500W in RTTY and FT-8 at a duty cycle of 50%. With dual LDMOS devices, Ethernet control, and full remote operation, it’s built for modern, automated high-performance stations.
SKU: PGXL -
4O3A, Antenna Tuners
Tuner Genius XL 2kW HF/6m Automatic Antenna Tuner
Tuner Genius XL is a high-power 1.8–54 MHz automatic antenna tuner designed for stations running up to 2 kW PEP. It that delivers fast, accurate matching, wide SWR range support, deep FlexRadio ecosystem integration, and full LAN-based remote operation for modern contest and DX stations.
SKU: TGXL -
4O3A, Antenna Switches, Remote Control
4O3A Antenna Genius 8×2
Antenna Genius 8×2 is a high-power, SO2R-capable antenna switch that routes up to eight HF/6 m antennas to two independent radios or amplifier chains. With 3 kW capability, Ethernet control, automatic band tracking, and tight FlexRadio integration, it delivers intelligent, fast, and reliable antenna management for contest, DX, and remote superstations.
SKU: 4O-AG8x2 -
4O3A, Audio & Sound, Headsets and Microphones, Remote Control, Transceiver Accessories
4O3A NC-1 Noise Cancelling Headset w/BT
4O3A, Audio & Sound, Headsets and Microphones, Remote Control, Transceiver Accessories4O3A NC-1 Noise Cancelling Headset w/BT
The NC-1 from 4O3A is a professional-grade noise-cancelling contest and DX headset engineered to deliver clear, fatigue-free audio in the harshest operating environments. With advanced ambient-noise suppression, a high-intelligibility microphone, and rugged construction, it keeps your focus on the signals that matter—whether in the shack or on a remote contest site.
SKU: 4O-NC1
See all Genius products by 4O3A here ➜
FlexRadio Controllers
FlexRadio Accessories
Most FLEX-6000 series accessories will be compatible with the 8000 and Aurora series. The exception is the Extended Transmit Module which is not compatible with Aurora.
Contact us about other accessories not listed above.
RadioSport Headsets with Cable for FlexRadio
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Bundles, FlexRadio, RadioSport Headsets
RS60CF-10A Headset + Cable for FLEX-6xxx/8xxx/Aurora
The radiosport RS60CF 10th Anniversary Edition Headset features new Full-Range headphone drivers and a special Full-Range Electret-Condenser Mic suitable for all modern HF Transceivers and especially useful with the TX/RX EQ available on the latest generation HF Desktop radios.
This bundle contains the Headset and cable for FLEX-6000/8000/Aurora series transceivers.
SKU: RS60CF-FLX -
Bundles, FlexRadio, RadioSport Headsets
RS60CF-10A Headset + Cable for Maestro A/B
The radiosport RS60CF 10th Anniversary Edition Headset features new Full-Range headphone drivers and a special Full-Range Electret-Condenser Mic suitable for all modern HF Transceivers and especially useful with the TX/RX EQ available on the latest generation HF Desktop radios.
This bundle contains the Headset and Headset-to-Radio cable for FLEX Maestro A and B.
SKU: RS60CF-MAE-AB -
Bundles, FlexRadio, RadioSport Headsets
RS60CF-10A Headset + Cable for Maestro C
The radiosport RS60CF 10th Anniversary Edition Headset features new Full-Range headphone drivers and a special Full-Range Electret-Condenser Mic suitable for all modern HF Transceivers and especially useful with the TX/RX EQ available on the latest generation HF Desktop radios.
This bundle contains the Headset and Headset-to-Radio cable with external PTT input for FLEX Maestro model C.
SKU: RS60CF-MAE-C -
Bundles, FlexRadio, RadioSport Headsets
RS55SL Headset + Jumper for FLEX Maestro A/B
The radiosport RS55SL is the perfect companion for travel when running remote radio applications on Tablets, Notebook PCs and even your Smart Phone. Also great for phone calls, Skype or even Zoom Meetings.
This bundle contains the Headset and Headset-to-Radio jumper for FlexRadio Maestro model A and B.
SKU: RS55-FLX-MAE-AB
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RadioSport Headset Cables
Headset Cable CS6-FLX-PTT
Headset-to-radio cable connecting a radiosport RS60CF-10A headset to a FlexRadio 6400(M) or 6600(M) transceiver. With headset PTT output to RCA. Includes a 2 x female to 1 x male RCA “Y-cable” for using both the headset PTT and additional PTT switch.
SKU: RS-CS6-FLX-PTT
